Survey of the Seas
What is a huge muddy valley that cuts into the deep ocean floor?
trench
What type of rock consists of smooth pebbles embedded in hardened sand or clay?
conglomerate rock
What type of weathering involves the breaking or peeling away of rock into layers?
exfoliation
Fossils used by evolutionists to date rock layers are called ____________
index fossils
The device that uses underwater sound waves to determine the size, distance, and direction of objects is ___________
sonar
The mass of foaming water formed when waves wash up onto a beach is the ____________
surf
What is the largest group of minerals, which composes over 90 percent of earth's crust?
silicates
Hills that form when advancing glaciers overrun old piles of till are called ___________
drumlins
What was thought to be the missing link in man's evolution but was later found to be the remains of a modern human?
Cro Magnon Man
What are large waves caused by an underwater disturbance called?
Tsunamis
What is a circular coral-reef island that grows around an underwater volcano?
atoll
What are weaker earthquakes that often follow an earthquake at frequent intervals for days or months?
aftershocks
What are deep cracks or fissures that develop on the surface of a glacier?
crevasses
Why do coelecanth and fossils like this pose a problem for evolution?
They should have evolved at the same rate as the other organisms.
gravity corer
Why can icebergs float in water?
Icebergs are less dense than seawater
What gemstone consists of corundum with traces of iron or titanium that gives it a distinctive blue color?
sapphire
what are large holes formed when huge chunks of melting glacial ice lodge in washed-out sediments?
kettles
What is the scientific term for the volume of the portion of the skull that includes the brain?
Cranial Capacity
What type of Tide occurs when there is one high tide and one low tide each day?
diurnal tide
What is a wave that grows taller and steeper as it travels to shore and topples forward with a white crest called?
breaker
The way light is reflected from the surface of a mineral is called ___________
cleavage
terracing
What idea attempts to reconcile the Bible and evolution by claiming that God used evolution as a method of creation?
Theistic Evolution
what device do oceanographers use to measure the temperatures at different levels and report them back to a surface ship?
expendable bathythermograph